SU1502270A1 - Arrangement for grinding parts made of wood - Google Patents

Abstract

The invention relates to abrasive machining, in particular, to machines for grinding bent pieces of wood. The purpose of the invention is to improve the quality of machining parts by increasing the sensitivity of the tracking unit. The device comprises a frame, conveyors 1, a connecting rod 2, in which a hollow rotor 3 is located with grinding tools forming the next node. In the device, the connecting rod 2 is mounted in horizontal guides 35, each of which is connected to the rod 36. Each rod 36 is mounted with the possibility of vertical movements in the guides 37 and 38 of the rack 39. The rod 36 is supported by means of the cup 40 on the compression spring 41 and is equipped with a toothed rack 43, meshed with a toothed sector 44, rigidly mounted on a shaft 45, mounted in a rack 39 and carrying threaded rods at the ends, with counterweights 48 screwed on them. Part 33, inserted into the rotor, displaces the connecting rod upwards, while the rods 36 also moving the vehicle is up, and the springs 41 are expanded. The counterweights carried by the shafts 45 are deflected, creating a certain moment, the force of which is directed upwards along the rods 36, reducing the force exerted on the springs weakened due to their release. At the same time, the force of the moment developed by the counterweights is equal to the force lost by the springs due to decompression. In a similar way, the next knot is also balanced when the rotor moves down. 1 il.

Description

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The invention relates to abrasive machining and can be used; sanding bent wood furniture parts.

The purpose of the invention is an increase in the quality of processing at the expense of new sensitivities) of the tracking node.

In the drawing, n) edst 1ls kinematic E. Scheme of the proposed device, axonometrics.

Device incl .: 1 driver conveyors 1, connecting rod 2, in which rotor 3 is rotatably mounted, carrying two frames 4, which are installed with swings. Each of the frames 4

The axis o carries on which the sleeve 6 is fastened with the possibility of rotation, the sprocket 7 at the one end of the sprocket at one end, and the other with the conical 1 nsgrnk) S. 1ep1 | un) with a conic gear 9, rigidly mounted on the shaft 10 of the rubber inflatable H1lis () oval cylinder 11. Each of the axes carries the rod 12, which is included in the frame. A stub sleeve 13, n) is attached to the bracket 14 attached to the rotor. Each of the frames 4 carries an uncoupled pusher 1o with a 1B swivel having a pair of po, 1 7, running around the rim of a cam 18 attached to the sprocket 19, mounted on the rotor 3 with the option BpaHienH) Sprocket 20, fixedly installed rotor, has a tooth on one or two teeth: ne (or larger), than an asterisk 1-9. The asterisks 19 and 21 are associated with pins 21 and 22 with the same asterisks 23 and 24, nassass iyu; l on shaft 25, driven by gel electrolyte 26. On P1agun 2 rigidly closed 1.1, star 27, sn; manns tsush.yu 28 with asterisks 29, rigidly mounted on the shafts 30, mounted on the jioTOpe and not on the rest, also rigidly installed. Single-blind asterisks 31, chains 32 with asterisks 7 of the drive P1.i {) ovals {| g cylinders 11. DETA; 1b 3 nodaetsya trans (.- 1K) pter 1 in zaz (; p between P1, li4) ova. cylinders 11. The connecting rod 2 has four rods, 34, included in the horizontal nan 35 or 35, MUGO rigidly attached to the rods 36, each of which is installed with the possibility of vertical 1LH1) 1x mixing in the guides 37 and 38 racks 39 stanings

The stem is supported by a pin 40 on a compression spring 41 mounted in the rack cup 42. The UJTUK 36 is equipped with a gear rack 11 43 hooked to the teeth of the sector 44, carried by the shaft 45 mounted in the sleeves 46 of the rack 39. The shaft 45 carries at the ends threaded rods 47 on which weights of the weights 48 are screwed. The next assembly is spring-loaded in the horizontal direction by a spring 49 to the left rod 36.

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The device works as follows.

Conveyors are tuned to the billeting size of the workpieces by swapping the brackets 14, the necessary clearance between the grinding cylinders II is set on the rotor, and the pushers 15 are set on the frames 4 depending on the diameter of the parts to be machined. After that, the conveyors 1 (not shown) and the rotor drive turn on with cam 18. Part is supplied in transport; ) 1, which pushes it into the gap between the grinding surfaces: the 1st cylinders., B) using both the BoKjiyr of its axes and together with the roto |) ohm around the part. Grinding wheels rotate around their axes; cylinders are received through conical gear wheels 8 and 9, driven through chains 32 from shafts 30, driven by sprockets 29 and chains 28 without spindle sprocket 27. In addition to rotation, direct cylinders coBCpHiaiOT returnable and atmospheric displacements, having a price that is a complete and uniform isnoztizvanie surfaces carried or abrasive sleeves. This is due to the swings of the frames 4 together with 1 cylinders of the cylinder. The frames are driven through the pushers 15 from the cam 18, cr (; f11, K (. Iroj) oro about (; | 1) starts the uniformity of the swing. Bpamt iuic cam relative to |) reject I1aetsya due to different H (kty among the teeth zys zdichek 19 and 20, and 1. ek); they are the common nrio.a from the same. not, -10Chok 23 and 24. The condition of the zazo |) and between each other located tp.tra.tno-symmett-) relative to the axis vrass-n t ora i.I ({1ov. cylinders provided) av: 1 junior sleeves 13, in which 1 includes the rod 12, pesome axes 5. With a tangled but crooked, 1 linear contour of the part in horizontal p.oskosti inspection 1 and engaging with a grinding tool, 1; ontakgiruyu1 with the protrusion of N1 in the gorzon rajibHOM | 1a1) a part of the charge from ;; vertical to 1 h) 1 Nom (1x. This cylinder is deformed in degree, than the other, which, due to the constant gap between the cylinders, is accompanied by a decrease in the deformation of the other center of the cylinder. The difference in the deformations of the cylinders results in a difference in the values of the forces acting on them. in the rezu.t-taty which arises ravoprieyuschuyuschimiuu- la, I horizonta.t on the composition of which (L1 displaces the next node (itatun with royu) ii ctojiuny curvature increase.

Equivalently, and s.ta, which mixes the tracking node in a vertical plane, occurs as when tracking in a horizontal plane due to the difference in deformation of cylinders (occupying horizontal or close to horizontal position) under the effect of convexity, tjpnon gi () () nani (L1 in the vertical plane onto one of the cylinders. The connecting rod supporting the rotor is displaced from the initial position in the direction of the increase in curvature, for example upward, carries IUTO 36 with itself along the guides 37 and 38. The springs 41 unclench by some amount . simultaneously, the racks 43 rotate the toothed sectors 44 with the shafts 45. The counterweights 48, deviating from the initial (vertical) position at which the system is in equilibrium, create a certain rotational moment, the force of which is applied to the P1 current and directed along them towards the rotor body vector thus reducing the force exerted on the springs, weakened due to their decompression. The magnitude of the M15ment developed by the counterweights is adjusted by moving them along the threaded rods 47. Virtually the force of the moment, Vai counterweights equal to the force due to the lost spring uncompressing them at during rotor upwards.

When the follower assembly goes down - to the initial position (at which the rotor is coaxial with the longitudinal axis of the conveyors), the balancing process is reversed as described - when the springs are strengthened (to the nominal 1O value) due to their compression, the force of the 1ch is applied from the bottom to the iiJTOK. fM 36, as the counterweights 48 return to their original vertical position, is weakened until it completely disappears when the counterweights are in a vertical position. During the course of the follower knot downward from the initial position, the springs 41 are compressed, and their force increases. The counterweights 48, deviating from the vertical position (in the direction opposite to their deviation from the vertical in previous cases), create a moment, the force of which is applied to the bolt 36 in the direction corresponding to the gravity vector, thereby increasing the force impact on reinforced due to compression of the spring.

Balancing the track and its assembly when the rotor moves up to the initial position occurs as follows: as the springs (up to the nominal) weaken, the force of the moment applied to the rods in the direction from above is ipiz. (l, ibl et 1 until the disappearance at the moment of taking the counterbalances 48 of the initial vertical position. Thus, the stability of the next y.kia in the vertical, 1y plane, regardless of the size of its mixing, is ensured.

As the pair of grinding tools handles the header. stir and c1. forward, is captured by the rollers of the next conveyor and transferred either to the next rotor during processing, or carried to a receiver (not shown) Pr-49 ensuring the return of the tracking unit to its original left position.

Establishing a tracking unit on the rods spring-loaded to the frame with the possibility of acting on the springs in the direction of either a passing or BCTpe4HON gravity vector with a certain force proportional to the amount of movement, ensures the balance of the tracking unit, stabilizes the tracking process with simultaneous grinding, increases the sensitivity of the tracking unit and, as a result, provides an increase in the operability of the device and an improvement in the quality of machining parts.

Claims (1)

Invention Formula A device for grinding wood parts, containing a frame and placed on a non-rotor step with grinding cylinders, forming an assembly following the shape of the part, capable of moving in horizontal and vertical planes and equipped with a balancing mechanism, characterized in that In order to improve the quality of processing, the next node is equipped with horizontal devices, in which the rod is installed, a spring-loaded rod is mounted on each of the rails, the frame is made with racks, prav.t constituent rods are placed, and fur of || uravnove1 1i- Vani configured as Ilok mounted on racks. iredna: (starting 1X) To interact with the toothed sectors, mounted on shafts, horizontally mounted on the stands of the bed, at the ends of which are mounted threaded rods equipped with counterweights, and the axes of the rods are perpendicular to the axis of the shafts.